Ultrasound-induced site-specific cleavage of azo-functionalized poly(ethylene glycol)

被引：226

作者：

Berkowski, KL

Potisek, SL

Hickenboth, CR

Moore, JS

机构：

[1] Univ Illinois, Dept Chem, Urbana, IL 61801 USA

[2] Univ Illinois, Beckman Inst Adv Sci & Technol, Urbana, IL 61801 USA

来源：

MACROMOLECULES | 2005年 / 38卷 / 22期

关键词：

D O I：

10.1021/ma051394n

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The ultrasonically induced site-specific cleavage of azo-functionalized poly(ethylene glycol) was fabricated. It was observed that the rate of ultrasonic cleavage is faster in the polymer backbone. It was found that the azo-functionalized polymer cleaves with a high degree of bond specificity, resulting in one type of chain end and fragments of low polydispersity. The results show that ultrasound-induced site-specific cleavage of polymers could be extended as an alternative to thermal and photoinduced reactions.

引用

页码：8975 / 8978

页数：4

共 9 条

[1]

Basedow A.M., 1977, ADV POLYM SCI, V22, P83

[2] ''Link-functionalized'' polymers: An unusual macromolecular architecture through bifunctional initiation [J].